Agile should push us into delivering the smallest part first and put it into production, but it is easy to forget. Especially working with replacing legacy systems it is easy to end up with a project path that aims too high. Martin Fowler has a nice example of how a really simplistic approach can be that will minimize time to market. Read it here.
Is it even broken? 😉 Alistair Cockburn writes that you can use the inception phase of RUP to give your team a sense of direction and understand just what problems you are trying to solve. Over simplifying and using Scrum as an excuse to not look at the big picture will probably get you into trouble. Communicating the big picture and motivating people to work towards the same goals, not just as individualists on separate tasks, is both hard and important.